Question: What significant event happened in Arkansas on April 12, 1861?
Paraphrase: On April 12, 1868, what notable event occurred in Arkansas?
SPARQL (Wikidata): SELECT ?obj WHERE { wd:Q1612 p:P793 ?s . ?s ps:P793 ?obj . ?s pq:P580 ?x filter(contains(YEAR(?x),'1861')) }